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In equilibrium defect chemistry, NiO usually has an oxygen excess accommodated by nickel vacancies.
Compared to the predicted data of cubic NiO single crystal, we can note that all the samples mainly kept cubic structure.

The Synthesis and Properties of Emulsion Copolymerization of Styrene with N-Substituted Phenyl Maleimide Qin Yu1, a 1 Northeast Petroleum University College of Chemistry and Chemical Engineering In China a 18745976237@163.com (Corresponding Author) Keywords: N-p-substituted phenylmaleimide, N-m-substituted phenylmaleimide, Styrene, Emulsionion copolymerization Abstract.
Introduction N-substituted phenyl maleimide (N-MPhMI) gets wide spread attention because of its excellent thermal properties and structure.

The Catalytic Performance Comparison of Two Different Pyrrolidone Type Ionic Liquid in Biodiesel Production from Soybean Oil Yuandong Xua School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China aydx11@126.com Keywords: Catalysis; Ionic liquid; Biodiesel; Soybean oil.
In positive ion mode the peaks corresponding to the positive ions determined by the ESI-MS provided the basis to the structures of the synthesized ionic liquids.

SEM micrographs of (A) cooper surface with Ppy/SA and (B) after OCP The SEM showed a microstructure in a form of compacted microspheres, differently of what was reported where shows polypyrrole films with a cauliflower structure [10].
Sharifirad: Journal of Eelectroanalytical Chemistry Vol. 645 (2010), p. 149

Elliot, Structure and chemistry of the apatites and other calcium orthphosphates, Elsevier, Amsterdam , 1994

Biodiesel Production from Used Vegetable Oil Using Ethanol and Sodium Methoxide Catalyst Sureerat Namwong1, a and Vittaya Punsuvon1, 2, 3 b * 1Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand 2Center of Excellence-Oil Palm, Kasetsart University, Bangkok 10900, Thailand 3Center for Advanced studied in Tropical Natural Resource, NRU-KU, Kasetsart University, Bangkok 10900, Thailand asureerat0169@gmail.com, bfscivit@ku.ac.th Keywords: Biodiesel, Ethanol, Fatty acid ethyl ester, Sodium methoxide, Fatty acid methyl ester.
ATR-FTIR (TENSOR 27, Bruker Optics, Inc, Billerica, MA, USA) was applied for the confirmation of chemical structure of biodiesel in the range of 4000-400 cm-1.

And a type of XD-2 X-ray diffraction (XRD) with Cu Kα radiation operated at 36 kV and 30 mA was used to analyze the coating phase structure.
Materials Chemistry and Physics. 137, 2013:959~966.

The incorporation of heteroatoms, such as boron, in these materials can be easily performed because the molecular structures of the polymeric precursors can be chemically tailored [2].
Babonneau: Chemistry of Materials Vol. 11 (1999), p. 910

Some experiment results showed that higher bulk of the reconstituted tobacco sheet improved the cigarette combustion, and reduced the generation of carbon monoxide and other harmful substances; in addition, the structure of the lignin in the wood pulp and tobacco material is composed by the phenylpropanoid which contributed the produce of PAHs and phenols in cigarette burning.
Chinese Journal of chemistry, 2010, 28(8): P.1312-1326 [14] Middleton S R, Scallan AM.

The principle of the FDM is based on surface chemistry, thermal energy, and layer manufacturing technology.
CT medical imaging is the key tool for viewing the internal structure of the human body, but is limited by its 2D image presentation in that it does not allow doctors to quickly diagnose illnesses and explain symptoms and treatments to patients [4].